<template>
    <div class="list" ref="wrapper">
        <div>
            <div class="area">
                <div class="title">当前城市</div>
                <div class="button-list">
                    <div class="button-wrapper">
                        <div class="button">{{city}}</div>
                    </div>
                </div>
            </div>
            <div class="area">
                <div class="title">热门城市</div>
                <div class="button-list">
                        <div
                            class="button-wrapper"
                            v-for="item of hot"
                            :key="item.id"
                            @click.stop="selectCity(item.name)"
                        >
                            <div class="button">{{item.name}}</div>
                        </div>
                </div>
            </div>
            <div class="area" v-for="(item,key) of cities" :key="key" :ref="key" >
                <div class="title border-topbottom">{{key}}</div>
                <div class="item-list">
                    <div class="item border-bottom" v-for="innerItem of item" :key="innerItem.id" @click.stop="selectCity(innerItem.name)" >
                        {{innerItem.name}}
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
import { mapGetters } from "vuex";
import Bscroll from "better-scroll";
export default {
  props: {
    hot: {
      type: Array,
      default: []
    },
    cities: {
      type: Object,
      default: {}
    },
    letter: {
      type: String,
      default: ""
    }
  },
  computed: {
    ...mapGetters(["city"])
  },
  methods: {
    selectCity(city) {
      console.log("aaa");
      this.$emit("select", city);
    }
  },
  mounted() {
    this.scroll = new Bscroll(this.$refs.wrapper);
  },
  watch: {
    letter() {
      if (this.letter) {
        const element = this.$refs[this.letter][0];
        this.scroll.scrollToElement(element);
      }
    }
  }
};
</script>

<style  scoped lang="stylus" rel="stylesheet/stylus" >
@import '~styles/varibles.styl';

.border-topbottom {
    &:before {
        border-color: #ccc;
    }

    &:after {
        border-color: #ccc;
    }
}

.border-bottom {
    &:before {
        border-color: #ccc;
    }
}

.list {
    overflow: hidden;
    position: absolute;
    top: 1.58rem;
    left: 0;
    right: 0;
    bottom: 0;

    .title {
        line-height: 0.54rem;
        background: #eee;
        padding-left: 0.2rem;
        color: #666;
        font-size: 0.26rem;
    }

    .button-list {
        overflow: hidden;
        padding: 0.1rem 0.6rem 0.1rem 0.1rem;

        .button-wrapper {
            float: left;
            width: 33.33%;

            .button {
                margin: 0.1rem;
                padding: 0.1rem 0;
                text-align: center;
                border: 0.02rem solid #ccc;
                border-radius: 0.06rem;
            }
        }
    }

    .item-list {
        .item {
            line-height: 0.76rem;
            padding-left: 0.2rem;
        }
    }
}
</style>
